Medical Definition of analytic. 1  1: of or relating to analysis; especially : separating something into component parts or constituent elements. 2  2: psychoanalytic.
Umbilical arterial (UA) Doppler assessment is used in surveillance of fetal well-being in the third trimester of pregnancy. Abnormal umbilical artery Doppler is a marker of uteroplacental insufficiency and consequent intrauterine growth restriction (IUGR) or suspected pre-eclampsia.
During fetal breathing movements, there are variations in the shape of the flow velocity waveforms from fetal vessels and, therefore, Doppler examinations should be conducted only during fetal apnea and in the absence of fetal hiccup or excessive movement.